What does stuffy mean?
Stuffy is an adjective describing something that feels close, stale, and poorly ventilated, as in a stuffy room or a stuffy atmosphere. It can also describe people, institutions, or customs that seem overly formal, old-fashioned, rigid, and resistant to new ideas. The word often carries a mildly negative or disapproving tone, suggesting either physical discomfort or a lack of freshness and vitality, though in conversation it can be used humorously or teasingly. Less commonly, stuffy means crammed or packed full. It is useful because it captures both a physical sensation—air that feels difficult to breathe—and a social or cultural impression—something perceived as dull, stuffy, and conventional. The word is understood in both British and American English, with no major regional restriction.
adjectiveLacking fresh air or ventilation, especially in a close, unpleasantly warm space. By extension, overly formal, old-fashioned, or lacking freshness and vitality.
- Lacking fresh air or ventilation; close, stale, and often uncomfortably warm.
- Overly formal, old-fashioned, conventional, or lacking vitality and spontaneity.
- Crammed or overfull, especially with objects or food.
"The room became stuffy after several people had gathered around the closed windows."
"The attic was hot and stuffy, with the windows painted shut."
"His stuffy insistence on formal titles made the conversation difficult."
"The small room felt stuffy after all the furniture was put inside."
Stuffy began by describing something crammed full, then grew into a word for stale air and even stiffer manners.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does stuffy come from?
Stuffy was formed in English from the older word stuff, meaning filling material or something packed into a space, together with the suffix -y. Its earliest sense was connected with being crammed or full, and it later came to describe a space lacking fresh air. The figurative sense for someone or something overly formal and old-fashioned developed by extension from ideas of stuffiness and lack of openness. Its root is also reflected in forms such as stuff, stuffed, and stuffing.
Related word forms
How stuffy is actually used
The word is informal to neutral in everyday use. Its figurative sense can sound sharply disapproving, especially when describing a person, institution, or style of behavior; in warmer contexts, however, it may be mildly teasing. The phrase “stuffy nose” means a congested or blocked nose.
Easily confused with stuffy
Stuffy describes an atmosphere, room, or manner that feels unventilated, stale, or overly formal, whereas stuffed means filled or packed.